A chunky slate-gray and white bird with a heavy, pale blue bill. A gregarious bird of forest and forest edge in the lowlands and mountains. Usually encountered in small groups, either gliding above the canopy or perched high up on dead snags, from which it regularly sallies. Note the white back, which separates this species from White-breasted Woodswallow. Ivory-backed also prefers forested areas, avoiding extensive open country. Calls include a series of metallic chirps.